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M41T00M Datasheet(PDF) 5 Page - STMicroelectronics |
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M41T00M Datasheet(HTML) 5 Page - STMicroelectronics |
5 / 15 page 5/15 M41T00 Table 6. DC Characteristics (TA = –40 to 85°C; VCC = 2.0V to 5.5V) Note: 1. STMicroelectronics recommends the RAYOVAC BR1225 or BR1632 (or equivalent) as the battery supply. Table 7. Power Down/Up Trip Points DC Characteristics (1) (TA = –40 to 85°C) Note: 1. All voltages referenced to VSS. 2. Switch-over and deselect point. Table 8. Crystal Electrical Characteristics (Externally Supplied) Note: Load capacitors are integrated within the M41T00. Circuit board layout considerations for the 32.768kHz crystal of minimum trace lengths and isolation from RF generating signals should be taken into account. STMicroelectronics recommends the KDS DT-38 Tuning Fork Type quartz crystal for industrial temperature operations. KDS can be contacted at 913-491-6825 or http://www.kdsj.co.jp for further information on this crystal type. Symbol Parameter Test Condition Min Typ Max Unit ILI Input Leakage Current 0V ≤ VIN ≤ VCC ±1 µA ILO Output Leakage Current 0V ≤ VOUT ≤ VCC ±1 µA ICC1 Supply Current Switch Frequency = 100kHz 300 µA ICC2 Supply Current (Standby) SCL, SDA = VCC – 0.3V 70 µA VIL Input Low Voltage –0.3 0.3 VCC V VIH Input High Voltage 0.7 VCC VCC + 0.8 V VOL Output Low Voltage IOL = 3mA 0.4 V VBAT (1) Battery Supply Voltage 2 3 3.5 V IBAT Battery Supply Current TA = 25°C, VCC = 0V, Oscillator ON, VBAT = 3V 0.8 1 µA Symbol Parameter Min Typ Max Unit VSO (2) Battery Back-up Switchover Voltage VBAT – 0.70 VBAT – 0.50 VBAT – 0.30 V Symbol Parameter Min Typ Max Unit fO Resonant Frequency 32.768 kHz RS Series Resistance 35 k Ω CL Load Capacitance 12.5 pF |
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